Vintage Ceramic CPUs Are Packed with Gold | Gold Recovery from Old Computer Processors

[00:00:00]The board.

[00:00:52]Most CPU computers are under the heat sink.

[00:00:57]Why a CPU computer needs a heat sink.

[00:01:01]CPU computer is hot while working, so it needs a heat sink.

[00:01:06]This is CPU.

[00:01:13]Of course, it has a gold-plated pin.

[00:01:23]This is an old CPU computer 486,386 Pentium Pro.

[00:01:37]You will see these CPU computers are made of ceramic.

[00:01:48]Of course, CPU computers made with ceramic have more gold than CPU general.

[00:01:55]We will separate metals mixed with gold removed preliminary with the use of nitric acid to reduce the amount of metal mixed with gold removed as much as possible before making gold aqua regia dissolving.

[00:02:10]I put the water 2000 ml.

[00:02:17]Nitric acid 1000 ml.

[00:02:26]Leave it for 2 weeks.

[00:02:30]You will see the golden legs fall off and the water turns green.

[00:02:35]Do not worry, nitric acid cannot dissolve gold.

[00:02:39]You may see some people skip this step to make gold aqua regia dissolving.

[00:02:45]I personally think that it contains too many other metals making gold aqua regia dissolving gold should have more than 60% gold precipitation with sodium metabisulfite will have in the gold 99.99%.

[00:03:01]If you have a better way, please comment to be useful for all of you. Clean up before proceeding.

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[00:03:33]You will see the pin of the CPU fall out.

[00:03:36]Cause of the nitric acid to dissolve the lead solder legs become water.

[00:04:11]>> I like this time, the yellow gold after we have taken our raw materials are soaked with nitric acid.

[00:04:19]It will help you evaluate. Will you get the gold?

[00:04:25]I would like to say that nitric acid is a good gold sorter for gold alloys and gold plated.

[00:04:41]You see under the die chip will have gold overlay.

[00:04:45]We soaked in nitric acid for 1 month. It will be separated.

[00:05:10]The chemical consists of one part nitric acid and three parts hydrochloric acid.

[00:05:16]When these two acids combine, we get aqua regia.

[00:05:21]After mixing acid, let it stand for 3 to 5 minutes.

[00:05:27]Slowly pour the aqua regia into the raw ingredients.

[00:05:31]You need to be aware of the dangers of chemicals and use protective equipment.

[00:05:39]Acid resist